At one point Elon Musk fired every employee in Brazil in order to prevent that. It didn’t work - the were blocked. After that, Elon caved and named a local legal representative. X has been, since then, very cooperative.

Afghanistan can block anything they want within their borders and hold anyone in contempt if they refuse to comply. Whether I support that or not is immaterial - I would have to comply in order to continue making other content or services available to Afghanistan residents. Being entirely blocked would be worse.